Files
nixos-configs/scripts/rotate-wallpaper.sh
John Ogle 49e6df605d feat(scripts): Add --help flags to all flake apps
Add consistent --help/-h argument handling to update-doomemacs.sh,
rotate-wallpaper.sh, and upgrade.sh scripts. Each script now displays
usage information and a description of what it does.

update-claude-code already had --help support.
2026-01-10 12:56:36 -08:00

66 lines
2.0 KiB
Bash

#!/usr/bin/env bash
set -euo pipefail
# Parse arguments
while [[ $# -gt 0 ]]; do
case $1 in
--help|-h)
echo "Usage: $0 [OPTIONS]"
echo ""
echo "Rotate to the next wallpaper in the configured list."
echo ""
echo "This script increments the currentIndex in home/wallpapers/default.nix,"
echo "cycling through available wallpapers. Rebuild your system to apply"
echo "the new wallpaper."
echo ""
echo "Options:"
echo " --help, -h Show this help message"
exit 0
;;
*)
echo "Unknown option: $1"
echo "Use --help for usage information"
exit 1
;;
esac
done
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color
# Configuration
REPO_ROOT="${REPO_ROOT:-$(git rev-parse --show-toplevel 2>/dev/null || pwd)}"
WALLPAPER_FILE="$REPO_ROOT/home/wallpapers/default.nix"
echo -e "${GREEN}Rotating wallpaper...${NC}"
# Check if file exists
if [[ ! -f "$WALLPAPER_FILE" ]]; then
echo -e "${RED}Error: $WALLPAPER_FILE not found${NC}"
exit 1
fi
# Get current index
CURRENT_INDEX=$(grep -oP 'currentIndex = \K\d+' "$WALLPAPER_FILE")
echo -e "Current index: ${YELLOW}$CURRENT_INDEX${NC}"
# Count wallpapers (count occurrences of "name = " in the wallpapers list)
WALLPAPER_COUNT=$(grep -c 'name = "' "$WALLPAPER_FILE")
echo -e "Total wallpapers: ${YELLOW}$WALLPAPER_COUNT${NC}"
# Calculate next index (wrap around)
NEXT_INDEX=$(( (CURRENT_INDEX + 1) % WALLPAPER_COUNT ))
echo -e "Next index: ${YELLOW}$NEXT_INDEX${NC}"
# Update the currentIndex
sed -i "s/currentIndex = $CURRENT_INDEX;/currentIndex = $NEXT_INDEX;/" "$WALLPAPER_FILE"
echo -e "${GREEN}Successfully rotated wallpaper!${NC}"
echo -e " Old index: ${YELLOW}$CURRENT_INDEX${NC}"
echo -e " New index: ${YELLOW}$NEXT_INDEX${NC}"
echo ""
echo "Rebuild your system to apply the new wallpaper."